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Finding the Fourth Proportional to 91,882.32, 126,811.48 and 56,093.20

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Solution

The fourth proportional to 91,882.32, 126,811.48 and 56,093.20 is: 77,417.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,882.32 : 126,811.48 = 56,093.20 : x
  2. Step 2: Convert to fraction form
    91,882.32/126,811.48 = 56,093.20/x
  3. Step 3: Cross multiply
    91,882.32x = 126,811.48 × 56,093.20
  4. Step 4: Simplify right side
    91,882.32x = 7,113,261,709.94
  5. Step 5: Solve for x
    x = 7,113,261,709.94/91,882.32
  6. Step 6: Final answer
    x = 77,417.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.